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Keywords
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continuous input current, DC/DC converter, energy storage, PV/FC/battery applications, sustainable
energies, three‐input
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Abstract
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A new three input convert er is present ed for sustainable energy applications.
Two unidirectional ports of the converter are used to connect power supplies
which can be controlled independently via the duty cycles of switches. For
connecting storage element, one of the ports is bidirectional. Using duty ratios
of the switches, battery charging/discharging can be also controlled. Since the
inductors are connected to the input s, the input current ripples are low. Higher
voltage gain and other advantages of the converter such as no limitation for
switching modulation and wide control range of input powers make the
proposed converter suitable for sustainable energy applications. Even if one
of the power supplies fails to provide energy, the converter can provide energy
to the load and charge/discharge the battery without voltage gain deduction.
The steady‐state analysis of the converter is discussed, and experimental result s
are provided to valid ate the feasibility of the proposed converter.
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